National 470487 Wheel Seal - Rear Inner

Overview of National 470487 Wheel Seal for Chrysler and Dodge

The National 470487 wheel seal is engineered to provide reliable sealing performance for select Chrysler and Dodge vehicles. Designed with precision, this oil seal helps maintain driveline integrity by preventing lubricant leaks and contamination.

• Inside diameter: 1.500 inches (38.100 mm)
• Outside diameter: 2.690 inches (68.330 mm)
• Housing bore: 2.686 inches (68.220 mm)
• Width: 0.500 inches (12.700 mm)
• Material: durable nitrile rubber
• Redicoat surface treatment for enhanced wear resistance
• Part number: 470487, series 470000, type 47

Technical Details and Material Specifications

This National wheel seal features a nitrile rubber compound known for its resistance to oil, heat, and wear, making it suitable for demanding automotive applications. The seal’s dimensions—1.500 inch inside diameter and 2.690 inch outside diameter—are designed to fit precisely within the housing bore of 2.686 inches, ensuring a secure and leak-free installation. The 0.500 inch width provides adequate sealing surface area to maintain oil containment under various operating conditions. Additionally, the Redicoat treatment enhances the seal’s durability by reducing friction and wear during shaft rotation.

Compatible Vehicles and Applications

This wheel seal is compatible with a range of Chrysler and Dodge models, including the 300, Dart, Imperial, Lancer, Newport, New Yorker, and Town & Country. It is specifically designed for driveline and axle sealing systems where maintaining oil integrity is critical to component longevity and performance.

• Prevents oil leaks in wheel hubs and axle assemblies
• Protects driveline components from dirt and contaminants
• Reduces wear on rotating shafts by maintaining lubrication
• Helps avoid premature bearing failure due to seal degradation
• Maintains proper pressure balance within axle housings

Installation Notes and Tips

When installing the National 470487 wheel seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip or the Redicoat surface. Verify the seal orientation matches the original part to maintain proper oil retention. Lubricate the sealing lip lightly with compatible oil before installation to reduce initial wear during startup.

Quality Assurance and Warranty

National wheel seals are manufactured to meet OEM specifications and undergo rigorous quality control to ensure consistent performance. The 470487 part number is backed by National’s standard warranty against defects in material and workmanship, providing confidence in its durability and fitment for Chrysler and Dodge driveline applications.